I was just wondering if anyone knew or have had personal experiances with this. I was curious of what the average horsepower and torque limits of a stock W58 tranny and rear diff were. I am building a project car and I am shooting for 600WHP by the time I am done. I will probably eventually go with LSD in the rear diff, but not yet. I just want to get the car running and driveable first. What do you guys think?